def get_new_file_name(jpg_path):
    try:
        exif_dict = piexif.load(jpg_path)
        # success - return new file name based on exif
    except (piexif._exeptions.InvalidImageDataError, KeyError):
        print('cannot read exif data for file: ' + jpg_path)
        # failure - return other file name, not based on exif, in different directory, this is detected in the calling function